Process of rerolling old rails



(No Model.)

G. HARGREAVES.

PROCESS OF REROLLING OLD RAILS. 1 I s28,9s7.

Patented Oct. 27, 1885.

WITNESSES:

UN TED TATES A'IEN'I Fries.

GEORGE HARGREAVES, OF WINTON PLACE, OHIO.

PROCESS OF REROLLING OLD RAILS.

EWECIFICATION forming part of Letters Patent No. 328,937, dated October 2'7, 1885.

Application filed February 18, 1885. Serial No. 156,289.

.To aZZ whom it may concern:

Be it known that I, GEORGE HARGREAVES, of \Vinton Place, in the county of Hamilton and State of Ohio, have invented a new and useful Improvement in Processes of Rerolling Old Steel and Iron Bails into Finished Pro ducts, which improvement is fully set forth in the following specification and accompanying drawings, in which Figure 1 is an end view of a railway-rail after the first pass through the rolls. Fig. 2 is an inverted position of the same supplied with the welding compound preparatory to the second pass. Fig. 3 shows the condition of the rail after the second pass. Fig. 4 is an end view of the rail after the third pass, and Fig. 5 a view of rail after fourth pass.

The object of the present invention is to reroll steel or iron rails into finished bars, and to reweld them; and to this end I employ suitable rolls which first bend the lower flanges of the rail inwardly toward the web, so as to form a trough on each side of the Web. By this means the troughs are adapted to hold a suitable liquid or semi-liquid compound, so that in the subsequent passes, or reheating and rerolling of the bar, the compound will be presented to the entire surface of the flanges and web which may come 'in contact and insure perfect welding, all of which will now be set forth in detail.

In the accompanying drawings, A represents the head of the rail; B, the web, and C the flange or base. Preparatory to passing through the first roll the rail is heated and inverted, as shown by dotted lines D in Fig. 1, and in that position the first pass is made.

In the process of bending down the flanges A scales will naturally form along the lines E, and, the rail being inverted, these scales are permitted to fall away from the rail and escape. Before the second pass the rail is again inverted, as shown in Fig. 2, and the troughs formed by the upturned flanges A and the web are filled with any suitable welding compound, as shown at F.

The second (No model.)

pass compresses the flanges so that the edges rest against the head A on opposite sides. The compound is thus inclosed in the interstices between the web and flanges. The third pass may be made by the rail being placed 011 one side, or by still keeping the rail upright, as shown in Fig. 4. The fourth pass, as shown in Fig. 5, closes the interstices and rewelds the flanges and web.

Four passes usually complete the first rolling into billets for small bars; but for larger bars it is to be rolled without reheating, although it is obvious that the bar may be reheated at any stage after the compound has been applied. It is evident that any form of Welding compound may be used to place on the troughs t-hat is, either liquid, semi-liquid, or granulated, or pulverized; and I do not therefore confine myself to any particular compound or substance. I have found in practice that the most satisfactory compound for this use is that known as the WVhitcomb Welding compound, and I therefore use it in preference to all others. By this process an oldrail can be rolled down to any desired size billet without reheating it, if desired, as it is obvious that the rapidity of the passes will enable the operators to make finished bars therefrom before it is cooled below the weld ing-point.

WhatI claim as new is The herein-described process,which consists in first passing the rail through the first set of rolls, so as to turn the flanges toward the Web, and then placing in a trough formed by the first pass a suitable welding compound, and afterward successively passing said billet through suitable rolls to weld and shape the billet, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand in presence of two witnesses.

GEO. HARGREAVES.

Witnesses:

HENRY J. HARROP, O. J. BAILEY. 

